CN106634363A - Aqueous resin concrete interfacial agent and preparation method thereof - Google Patents

Aqueous resin concrete interfacial agent and preparation method thereof Download PDF

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Publication number
CN106634363A
CN106634363A CN201611258185.1A CN201611258185A CN106634363A CN 106634363 A CN106634363 A CN 106634363A CN 201611258185 A CN201611258185 A CN 201611258185A CN 106634363 A CN106634363 A CN 106634363A
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water
concrete
agent
base resin
resin concrete
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CN201611258185.1A
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Inventor
赵永旗
戚向东
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SHANGHAI MORFANT NEW MATERIAL TECHNOLOGY Co Ltd
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SHANGHAI MORFANT NEW MATERIAL TECHNOLOGY Co Ltd
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Priority to CN201611258185.1A priority Critical patent/CN106634363A/en
Publication of CN106634363A publication Critical patent/CN106634363A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/06Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/08Homopolymers or copolymers of acrylic acid esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F212/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
    • C08F212/02Monomers containing only one unsaturated aliphatic radical
    • C08F212/04Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F212/06Hydrocarbons
    • C08F212/08Styrene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/14Methyl esters, e.g. methyl (meth)acrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/16Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D125/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/02Homopolymers or copolymers of hydrocarbons
    • C09D125/04Homopolymers or copolymers of styrene
    • C09D125/08Copolymers of styrene
    • C09D125/14Copolymers of styrene with unsaturated esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/06Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/10Homopolymers or copolymers of methacrylic acid esters
    • C09D133/12Homopolymers or copolymers of methyl methacrylate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/16Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1804C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
    • C08K2003/0881Titanium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives

Abstract

The invention discloses an aqueous resin concrete interfacial agent, which includes the following components: a nano carbon-titanium composite, carbon-titanium modified acrylic resin, a wetting agent, a functional filler, a defoamer, an anti-flash-rust agent, a film-forming additive, a pH regulator, a sterilizing agent, and deionized water. The aqueous resin concrete interfacial agent contains active silicate ions, which can be reacted with free calcium ions, which are not reacted to form calcium silicate, in concrete to generate a calcium silicate hydrate, so that the calcium ions further precipitate in the reaction, thereby greatly improving strength and hardness of the concrete. The acrylic resin, which is specially modified by the nano material, has a permeation and diffusion effect to a building material, thereby improving mutual adhesive property and improving adhesion and combination of a basic layer and a surface layer. The concrete interfacial agent can be applied to surface of building materials, such as cement mortar, concrete, light concrete partition boards, fiber-reinforced cement boards, etc. The concrete interfacial agent can solve problems that the interfaces are difficult to bind due to surface powdering of the basic layer, strong water absorption or smoothness.

Description

A kind of water-base resin concrete interface agent and preparation method thereof
Technical field
The invention belongs to industrial coating field, specifically relates to a kind of water-base resin concrete interface agent.
Background technology
The Main Ingredients and Appearance of cement is aluminum oxide, silica, calcium oxide etc., and these materials belong to alkaline matter, in moisture In the presence of, faintly acid gas of these materials easily and in air, such as carbon dioxide, nitrogen dioxide reacts, Cause cement to be etched, show as cement powder of detached, surface texture becomes loose.Equally, cement is also subject to sulfate corruption Erosion.The modal source of sulfate is clay, clay brick and some underground water, sulfate can with moisture from high humility place to Low humidity direction migrates.The moisture of underground or soil is higher, and concrete humidity is relatively low, can thus produce moisture Directional migration, with moisture evaporation, leaves entrained sulfate and other solutes, will corrode cement, makes cement mortar efflorescence Or concrete surface is peeled off.And set up and the various types of materials combined on the concrete surface, its adhesive property can be substantially reduced very To forfeiture.
The content of the invention
The purpose of the present invention, exactly provides water-base resin concrete interface agent to solve the above problems, can not only It is significantly increased the intensity and hardness of concrete, and it is strong or smooth cause interface to solve substrate surface efflorescence, water imbibition It is difficult the problem of bonding.
The object of the present invention is achieved like this:
A kind of water-base resin concrete interface agent of the present invention includes following components and weight/mass percentage composition:
Above constituent mass percentage composition sum is 100%;
Wherein carbon titanium is acrylic resin modified is prepared from by following components and weight/mass percentage composition:
Above constituent mass percentage composition sum is 100%.
In a kind of above-mentioned water-base resin concrete interface agent wetting agent selected from alkyl sulfate, sulfonate, aliphatic acid, Fatty acid ester sulfate, carboxylic acid soaps, phosphate, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether and polyoxyethylene gather At least one in oxypropylene block copolymer.
Functional filler is selected from alumina silicate and lithium metasilicate at least in a kind of above-mentioned water-base resin concrete interface agent It is a kind of.
Defoamer is in mineral oil, silicone and polyethers in a kind of above-mentioned water-base resin concrete interface agent It is at least one.
The anti-flash rusting agent in a kind of above-mentioned water-base resin concrete interface agent is natrium nitrosum.
Coalescents are selected from least one of alcohol ester and alcohol ether in a kind of above-mentioned water-base resin concrete interface agent.
Bactericide is OIT in a kind of above-mentioned water-base resin concrete interface agent.
The present invention also provides a kind of preparation method of water-base resin concrete interface agent, it is characterised in that including following step Suddenly:
(1) carbon titanium is prepared by following components acrylic resin modified:
(2) raw material of following components and weight/mass percentage composition is weighed:
(3) by the acrylic resin modified addition paint mixing tank of carbon titanium, stirring is started, mixing speed 300-500 turns, central liquid There is whirlpool in face.With pH regulators pH value is adjusted to 8.5 ± 0.5;
(4) with ionized water by wetting agent and defoamer with being slowly added to disperse 15 points in paint mixing tank after being uniformly mixed Clock, is subsequently adding functional stuffing, at a high speed dispersion 20 minutes;
(5) deionized water is slowly added to be stirred 20 minutes in paint mixing tank after being well mixed in coalescents, bactericide;
(6) nano-sized carbon titanium compound is added in paint mixing tank and is stirred 20 minutes.
A kind of water-base resin concrete interface agent of the present invention contains active silicic acid radical ion, can with unreacted in concrete into The free calcium ions reaction of calcium silicates generates calcium silicate hydrate, makes the calcium ion in concrete further participate in reaction, significantly Improve the intensity and hardness of concrete in degree ground.Absorbability basic unit interface supplemented by the special modifying cinepazid olefin(e) acid resin of nano material The special modifying cinepazid olefin(e) acid resin of agent, wherein nano material there is diffusion to act on construction material, improve bonding each other Performance, has reached raising basic unit and has been combined with the attachment of surface layer.The present invention can be used for cement mortar, concrete, lightweight concrete every The building material surfaces such as wallboard, fiber reinforced cement board, solve substrate surface efflorescence, water imbibition strong or smooth cause interface to be difficult Bonding.
Specific embodiment
Below in conjunction with embodiment, the invention will be further described.
Prepare carbon titanium according to the following steps first acrylic resin modified:
(1) raw material of following quality is weighed:
(2) will stir in 2400g deionized waters and 500g nano-sized carbon titanium compounds and 3g ammonium hydrogen carbonate input reactor It is warming up to 88 DEG C;
(3) by 2300g deionized waters and 400g nano-sized carbon titanium compounds and 20g sulfosuccinates input pre-emulsification kettle Whole butyl acrylates, methyl methacrylate, styrene and acrylic acid are put under middle stirring, stirring takes after 30 minutes Go out;
(4) mixing liquid of step (3) is added in the warmed up reactor to 88 DEG C and is stirred;
(5) 200g ionized waters and 30g ammonium persulfate wiring solution-formings are removed;
(6) in the solution half input reactor for obtaining step (5), temperature of reaction kettle is maintained in 85~86 DEG C of stirrings;
(7) 200g deionized waters and 100g DAAMs and step (5) configuration are put into pre-emulsification kettle Solution second half be uniformly mixed;
(8) product of step (7) is taken out and is added dropwise in reactor, maintain reactor to stablize 83~84 DEG C, time for adding For 3 hours, it is added dropwise to complete rear reactor and is warming up to 88 DEG C of simultaneously keeping temperature 2 hours, then temperature of reaction kettle is down to 60 DEG C of inputs Mineral oil stirs, and is then cooled to 50 DEG C and puts into OIT and stirs, and is then cooled to 40 DEG C and puts into ammonia Water stirs, you can obtain carbon titanium acrylic resin modified.
Weigh previous step preparation carbon titanium it is acrylic resin modified prepare water-base resin concrete interface agent, by following group Divide and weigh preparation raw material:Carbon titanium acrylic resin modified (360g), ammoniacal liquor (1.2g), deionized water (20g), alkylsulfonate (1.2g), alkyl sulfate (0.4g), mineral oil (0.8g), natrium nitrosum (0.8g), lithium metasilicate (560g), alcohol ester (6g), alcohol Ether (6g), OIT (0.4g), nano-sized carbon titanium compound (35g).
It follow these steps to prepare aqueous industrial baking vanish:
(1) by the acrylic resin modified addition paint mixing tank of carbon titanium, stirring is started, mixing speed 300-500 turns, central liquid There is whirlpool in face.With ammoniacal liquor pH value is adjusted to 8.5 ± 0.5;
(2) it is uniformly mixed after being pre-dissolved alkylsulfonate, alkyl sulfate, mineral oil and natrium nitrosum with ionized water After be slowly added to paint mixing tank, dispersion adds lithium metasilicate after 15 minutes, at a high speed dispersion 20 minutes;
(3) the good alcohol ester of deionized water predissolve, alcohol ether and OIT is added to be slowly added to be stirred in paint mixing tank After 20 minutes, nano-sized carbon titanium compound is added in paint mixing tank and is stirred 20 minutes.
A kind of water-base resin concrete interface agent of the present invention contains active silicic acid radical ion, can with unreacted in concrete into The free calcium ions reaction of calcium silicates generates calcium silicate hydrate, makes the calcium ion in concrete further participate in reaction, significantly Improve the intensity and hardness of concrete in degree ground.Absorbability basic unit interface supplemented by the special modifying cinepazid olefin(e) acid resin of nano material The special modifying cinepazid olefin(e) acid resin of agent, wherein nano material there is diffusion to act on construction material, improve bonding each other Performance, has reached raising basic unit and has been combined with the attachment of surface layer.The present invention can be used for cement mortar, concrete, lightweight concrete every The building material surfaces such as wallboard, fiber reinforced cement board, solve substrate surface efflorescence, water imbibition strong or smooth cause interface to be difficult Bonding.
Above example is used for illustrative purposes only, rather than limitation of the present invention, about the technology people of technical field Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalents Technical scheme should also belong to scope of the invention, should be limited by each claim.

Claims (8)

1. a kind of water-base resin concrete interface agent, it is characterised in that including following components and weight/mass percentage composition:
Above constituent mass percentage composition sum is 100%;
The carbon titanium is acrylic resin modified to be prepared from by following components and weight/mass percentage composition:
Above constituent mass percentage composition sum is 100%.
2. a kind of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that the wetting agent is selected from alkyl Sulfate, sulfonate, aliphatic acid, fatty acid ester sulfate, carboxylic acid soaps, phosphate, polyoxyethylated alkyl phenol, polyoxyethylene At least one in fatty alcohol ether and polyoxyethylene polyoxypropylene block copolymer.
3. a kind of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that the functional filler is selected from At least one of alumina silicate and lithium metasilicate.
4. a kind of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that the defoamer is selected from mineral At least one of oil, silicone and polyethers.
5. a kind of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that the anti-flash rusting agent is nitrous Sour sodium.
6. a kind of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that the coalescents are selected from alcohol At least one of ester and alcohol ether.
7. a kind of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that the bactericide is isothiazole Quinoline ketone.
8. a kind of preparation method of water-base resin concrete interface agent as claimed in claim 1, it is characterised in that including following Step:
(1) carbon titanium is prepared by following components acrylic resin modified:
(2) raw material of following components and weight/mass percentage composition is weighed:
(3) by the acrylic resin modified addition paint mixing tank of carbon titanium, stirring is started, mixing speed 300-500 turns, and center liquid level goes out Existing whirlpool.With pH regulators pH value is adjusted to 8.5 ± 0.5;
(4) with ionized water by wetting agent and defoamer with being slowly added to disperse in paint mixing tank 15 minutes after being uniformly mixed, so After add functional stuffing, dispersion 20 minutes at a high speed;
(5) deionized water is slowly added to be stirred 20 minutes in paint mixing tank after being well mixed in coalescents, bactericide;
(6) nano-sized carbon titanium compound is added in paint mixing tank and is stirred 20 minutes.
CN201611258185.1A 2016-12-30 2016-12-30 Aqueous resin concrete interfacial agent and preparation method thereof Pending CN106634363A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417370A (en) * 2011-08-30 2012-04-18 昆明钢铁控股有限公司 Interface agent for reducing surface water absorption of aerated concrete
CN104650302A (en) * 2015-01-20 2015-05-27 江苏丰彩新型建材有限公司 Interface agent, as well as preparation method and application thereof
CN105219204A (en) * 2015-10-30 2016-01-06 桂林市和鑫防水装饰材料有限公司 A kind of novel acrylic ester waterproof paint
CN105541173A (en) * 2015-12-23 2016-05-04 苏州市姑苏新型建材有限公司 Penetrating type liquid hardening agent and preparation method thereof
CN106147485A (en) * 2016-06-22 2016-11-23 林金溪 A kind of resistance to salting-out anti-accumulation of salt in the surface soil seal coat and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417370A (en) * 2011-08-30 2012-04-18 昆明钢铁控股有限公司 Interface agent for reducing surface water absorption of aerated concrete
CN104650302A (en) * 2015-01-20 2015-05-27 江苏丰彩新型建材有限公司 Interface agent, as well as preparation method and application thereof
CN105219204A (en) * 2015-10-30 2016-01-06 桂林市和鑫防水装饰材料有限公司 A kind of novel acrylic ester waterproof paint
CN105541173A (en) * 2015-12-23 2016-05-04 苏州市姑苏新型建材有限公司 Penetrating type liquid hardening agent and preparation method thereof
CN106147485A (en) * 2016-06-22 2016-11-23 林金溪 A kind of resistance to salting-out anti-accumulation of salt in the surface soil seal coat and preparation method thereof

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